CMX673 Просмотр технического описания (PDF) - MX-COM Inc
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CMX673 Datasheet PDF : 11 Pages
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Call Progress Tone Detector
Page 9 of 11
6.1.3 Operating Characteristics
For the following conditions unless otherwise specified:
Xtal Frequency = 3.579545MHz, S/N = 16dB, Noise Bandwidth = 5kHz,
VDD = 3.0V to 5.0V, TAMB = -40°C to 85°C, 0dB = 775mVRMS.
DC Parameters
IDD (ENABLE = ‘1’)
(VDD = 5.0V)
(VDD = 3.0V)
AC Parameters
SIGIN pin
Input Impedance
Minimum Input Signal Level
Input Signal Dynamic Range
Signal to Noise Ratio
Xtal/Clock Input
‘High’ Pulse Width
‘Low’ Pulse Width
Gain (input = 1mVRMS at 100Hz)
Level Detector
Must Detect Signal Level
Must Not Detect Signal Level
Call Progress Band
Must Detect Range
Must Not Detect Range
Logic Interface
Input Logic “1” Level
Input logic "0" level
Input leakage current (VIN = 0 to VDD)
Input Capacitance
Output logic "1" level (lOH = 120µA)
Output logic "0" level (lOL = 360µA)
Notes Min.
1
1
2
40.0
16.0
3
100
3
100
20.0
4
-38.0
4
7
315
750
5
80%
5
5
-5.0
5
6
90%
6
CMX673 Preliminary Information
Typ. Max. Units
1.0
1.5
mA
0.5
1.0
mA
0.1
MΩ
-38.0
dB
dB
dB
ns
ns
dB
dB
-50.0 dB
650
Hz
250
Hz
VDD
20% VDD
5.0
µA
10.0
pF
10%
VDD
VDD
Notes:
1. Not including any current drawn from the detector pins by external circuitry.
2. Small signal impedance over the frequency range 100Hz to 2000Hz and at VDD = 5.0V.
3. Timing for an external input to the XTAL/CLOCK pin.
4. Input signal level at VDD = 5.0V, scale signal for different VDD.
5. ENABLE pin.
6. DETECT pin.
7. Nominal values that are subject to dynamic tolerances within the signal analysis process, as a result of
using stochastic signal processing techniques.
ã2001 MX-COM, Inc
www.mxcom.com Tel: 800 638 5577 336 744 5050 Fax: 336 744 5054
Doc. # 20480182.007
4800 Bethania Station Road, Winston-Salem, NC 27105-1201 USA All Trademarks and service marks are held by their respective companies.
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